Fountain-pen.



Patented July 25, |899. S J MEYERPETER FOUNTAIN PEN.

(Appl t ldMa 1 1899) No. 629,5l9.

(No Model) threads and render it very difficult to remove1 UNITED STATES.

PATENT rricn;

STEPHEN J. MnYnRPn'rnR, on JANEsv'ILLE, wisoonsinr FOUNTAIN-PEN.

snncin'IoATIoN farming part or Letters Patent No. 629,519, dated July 2t,v 1899.

i Application filed lllizi'rclrl,1899. I Serial No. '707)419. (Nomodel.) v

To all whom t may concern:

Be it known that 1 STEPHEN IMEYRPE- Tijn, a citizen of the United Statesresiding at Janesville, in thecounty of Rock and State of Wisconsin, have invented a new anduseful Fountain-Pen, of which thefollowing is a specification. f

My invention relates to improvements in fountainpens of that class wherein the nozzle is connected detachably to the lower yend of the tubular reservoir-staff and isadapted to carry the pen and the capillary feed-bar; and

the object in View is to dispense with the or-` the nozzle, often requiring the application of considerable force to the nozzle and staff to lovercome the resistance of the joint, and,

secondly, the operation of screwing or unscrewing the nozzle to or from the staff cannotbe effected quickly, and care must also n be taken to keep the threads clean or free from accumulations of ink in order to facilitate the adjustment of the nozzle. To overcome these objections, I have devised a novel construction and arrangement of parts which will be hereinafter fully described and claimed.

To enable others to understand the invention, I have illustrated the preferred embodiment thereof in the accompanying drawings, forming a part of the present specification, and in which- Figure 1 is a longitudinal sectional elevation of a fountain-pen embodying this invention. plane indicated by the dotted line 3 3 of Fig. 1. Fig. 3 is a detail perspective View of the improved nozzle4 removed from the tubular stad. Fig. 4 is a longitudlnal section showing the nozzle partly fitted in the staff and illustrating the mode of adjustment of the nozzle in removing or replacing it.

Fig. 2 is a transverse section on the.

`general features to ordinary devices in the art; but in .lieu of forming the lower open end L,of the staff with a female thread I provide said' i end of the staff with a smooth interior surface 11. Within the smooth interiorsurface of said staff issecured orformeda lookin g pin or stud 12, that is adapted to engage ywith a part of the v nozzle 13 to securely confine the latter against endwise displacement withinfsaid staff. This nozzle 13 is made of a single piece, and, as is usual in the art, it is constructed or fashioned to carry the pen-14 and the ordinary capillary feed-bar 15, the latter extending beyond the heel of the nozzle and into the ink-reservoir of the tubular staff for'the purpose of supplying the ink by capillary attraction to the nibs of the pen 14. This nozzle is not externally threaded like prior devices in the art; but, on the contrary, the external surface of the nozzle is smooth and unbroken, as clearly shown by Fig. 3. In practice I prefer to make the pen-staff and the nozzle of hardrubber, although any other suitable material may be used,and the nozzle is proportioned to fit accurately into the open end of the tubular staff to the end that the smooth cylindrical surface 16 of the nozzle will engage frictionally with the smooth inner surface 11 of the staff for securing a friction-tight joint, which will prevent the leakage of the ink between the separable nozzle andthe staff. The nozzle is, furthermore, provided witha locking-finger 17, which is preferably integral with the nozzle and is extended beyond the heel or inner end thereof. This locking-finger is formed with a spiral 18 at oneedge thereof, and the heel of the nozzle has an annular smooth edge 19, which is interrupted or broken by,

the locking-finger 17. A notch or recess 2O is provided at the line where the straight edge 21 of the locking-finger lies adjacent to the IOO I open end of the staff., and the nozzleis slipped endwise therein until it is arrested by engage` ment with the stud or pin 12. If the nozzle occupies a position within the staff for its straight edge or heel 19 to abut against the pin or stud, it is only necessary to rotate they nozzle slightly ina direction for the stud to enter the notch 2O of the nozzle, thus locking said nozzle detachably and rmlyto the staff. If, however, the edge 1S of thelocking-inger abuts against the stud or pin 12, the nozzle must berotated within the stati suliiciently for the stud to'ride against the heel or edge 19 in order that the stud may assume a position which will enable it to enter the notch.

If 'the nozzle is rotated in onedirectiomth spiralfedge 18 of the finger will ride against the stud to move the nozzlea limited distance inthe staff 'until the extreme end ofthen ger clearsthe' stud, afterwhich an inward movement or thrust'of the nozzle 'will cause the'fstud to ride along th@ Straight' .edge 2l of tlie"linger,`and the nozzle may then be turned slightly in areverse direction to make the stud enter the notch.` p

Fromthe foregoing description it will be understood that I have provided an improved construction of the fountainspen by which the ordinary thread-joint'is dispensed with and the nozzle is fitted in the stai to have a liquid-tight frictional joint therewith 'and is interlocked against endwise displacement by means which permit the insertion orwith-` drawal of the nozzle to be effected easily and quickly. The nozzle isv so constructed that it may be interlocked by proper adjustment thereof with the pen-stad in either position of insertion of the nozzle, and it is not necessary to entirely Withdraw the nozzle from the staff should the nozzle beimproperly inserted.v The described means enables the parts to be separated for the purpose of replenishingthe ink-supply inthe tubular stati. orof cleansingthe nozzle and the staff.

Changesmay be made in the form and proportion of some of the parts while their essential features are retained andthespirit of theinvention embodied. Hencelfdo not desire to be limited to the precise form of all the parts as shown, reserving the right to vary therefrom.

As n onovelty is hereinclaimed `for the pen or'the feeder-bar, it will be understood that any kind of pen or feeder `may be attached to the nozzle, andl said pen or feeder may readily be removed and interchangedwith any "desired devices known'to those skilled in the` art. l l

Having. thus described the invention, what IV claim isl l 1. A fountain-pen consisting of a staff having an internal, .smooth surface and a lock:

ing' stud or pimanda removable'nozzlehav` ing an external smooth surfaceandprovided" withan extended finger which is notched fand" formed `with a spiral edge to haventerlocki ing Vengagement with thestnd or pin-of the* stal, substantially as described. f

2. In a fountain-pen, the combination `with a statt, of va nozzle having a'notched locking` finger,'and a pin or stud fixed within the stailL in the path-of thefinger and 'arranged'to' in`- terlock with the notch thereinl to holdl thev nozzle against endwise displacement in either direction'withinthe stati, substantially as de#v scribed. l l

3. In afountain'fpen, the combination with a tubular statt' having an unthreaded, inter nal friction-surface at its openxend,` ota smooth, unthreaded nozzle slidably andrevolubly itted withinthe stati, and provided with a spiral, notched locking-finger, and a stud ixed` within the staff in the path of 'said finger,substantiallyas described.

In testimony that I claim the foregoing `as my own I have heretoaixed my signature in the presence of two witnesses.

STEPHEN J. MEYERPETER.

Witnesses:

MA'UDE BRAon, T. S. NOLA'N. 

